Très belle photo! I like how you kept a certain anonymity but still captured such a intimate moment. The leaves arround them work as an interesting frame, it makes this couple even more standing out. Well done!

Not the everyday angle on this subject but it works! The composition with the couple allmost in the corner also works well. The concrete bench looks so uncomfortable that only teenage lovers can use it:)
I think you could sharpen it more and increase contrast.